[Gc] Bus error && Deallocation of excessively large block
..
Arote Uddhav
aroteuddhav at gmail.com
Sat Jul 14 02:16:43 PDT 2012
Hi ,
will it take care of the mallocs deep inside the libraries .. u mean i need
to build GC with that option ?
On Sat, Jul 14, 2012 at 2:43 PM, Arote Uddhav <aroteuddhav at gmail.com> wrote:
>
> Hi,
> Ok great !
>
> On Sat, Jul 14, 2012 at 2:38 PM, Ivan Maidanski <ivmai at mail.ru> wrote:
>
>> Hi Arote,
>>
>> 1. GC_THREADS forces gc.h to include pthread.h and redirect
>> pthread_create to GC_pthread_create.
>> If GC_THREADS is not defined then single-threaded mode is assumed.
>>
>> 2. If you want to make standard malloc behave like GC_MALLOC, please look
>> to --enable-redirect-malloc GC option.
>>
>> Regards,
>> Ivan
>>
>> Sat, 14 Jul 2012 14:34:04 +0530 Arote Uddhav <aroteuddhav at gmail.com>:
>>
>> Hi ,
>>
>> GC cannot collect those memory allocations which are allocated by
>> explicit use of malloc ?
>> With threads I am using few external libraries which are sort of leaky ..
>> can we make GC to be a global garbage collector ,by this I mean , GC will
>> recollect all the memory locations which are not pointed by any
>> pointers,not necessarily using GC_MALLOC
>>
>> On Sat, Jul 14, 2012 at 2:28 PM, Arote Uddhav <aroteuddhav at gmail.com<http://e.mail.ru/cgi-bin/sentmsg?compose&To=aroteuddhav@gmail.com>
>> > wrote:
>>
>> Hi ,
>> well .. it worked !
>> But why is this restriction
>> #define GC_THREADS
>> #include "gc.h"
>>
>> why should we follow this order ... special reason ?
>>
>> On Sat, Jul 14, 2012 at 2:19 PM, Ivan Maidanski <ivmai at mail.ru<http://e.mail.ru/cgi-bin/sentmsg?compose&To=ivmai@mail.ru>
>> > wrote:
>>
>> Hi Arote,
>>
>> Sat, 14 Jul 2012 14:08:03 +0530 Arote Uddhav <aroteuddhav at gmail.com<http://e.mail.ru/cgi-bin/sentmsg?compose&To=aroteuddhav@gmail.com>
>> >:
>> > Hi All ,
>> >
>> > Until now I have used only GC_MALLOC and GC_INIT functions in the
>> program code.
>> > platform : ubuntu Linux
>>
>> ok.
>>
>> >
>> >
>> > In the file where I declared this piece of code I used
>> > #define GC_THREADS
>>
>> must be before #include <gc.h>
>>
>> >
>> >
>> > Well,.is it we need to initialize GC at evry function where it is
>> used..I have used only at the start of the main function...?
>>
>> GC_INIT(); must be only at the beginning of main().
>>
>> >
>> >
>> > Thank you ,Uddhav!
>> >
>> >
>> > On Sat, Jul 14, 2012 at 1:53 PM, Ivan Maidanski <ivmai at mail.ru<http://e.mail.ru/cgi-bin/sentmsg?compose&To=ivmai@mail.ru>>
>> wrote:
>> > Hi Arote,
>> >
>> > "Collecting unknown thread" means you call some GC function from a
>> thread not registered by GC.
>> >
>> > What's your target platform?
>> > Check that pthread_create is redirected to GC_pthread_create.
>>
>> Have you checked this?
>>
>> Regards,
>> Ivan
>>
>> >
>> > The given code fragment seems to be valid (Are there any other places
>> GC is called?)
>> >
>> > Regards,
>> > Ivan
>> >
>> > Sat, 14 Jul 2012 13:46:02 +0530 Arote Uddhav <aroteuddhav at gmail.com<http://e.mail.ru/cgi-bin/sentmsg?compose&To=aroteuddhav@gmail.com>
>> >:
>> >
>> > > No luck.. !
>> > >
>> > > On Sat, Jul 14, 2012 at 1:29 PM, Ivan Maidanski <ivmai at mail.ru<http://e.mail.ru/cgi-bin/sentmsg?compose&To=ivmai@mail.ru>>
>> wrote:
>> > >
>> >
>> >
>> > > > Hi Arote,
>> > > >
>> > > > Please ensure that you have in the code:
>> > > >
>> > > > #define GC_THREADS
>> > > > #include <gc.h>
>> > > >
>> > > > ...
>> > > >
>> > > > main() {
>> > > > GC_INIT();
>> > > >
>> > > > Regards,
>> > > > Ivan
>> > > >
>> > > > Wed, 11 Jul 2012 15:11:12 +0530 Arote Uddhav <
>> aroteuddhav at gmail.com<http://e.mail.ru/cgi-bin/sentmsg?compose&To=aroteuddhav@gmail.com>
>> >:
>> > > > > Hi All ,
>> > > > > I am trying gc with my program. I need to create threads at run
>> time.
>> > > > >
>> > > > >
>> > > > > <code>
>> > > > > while(1)
>> > > > > {
>> > > > > pthread *t = (pthread_t *) GC_MALLOC( num_of_files * sizeof
>> (pthread_t
>> > > > ));
>> > > > > int *iret = (int *) GC_MALLOC( num_of_files * sizeof (int
>> ));
>> > > > >
>> > > > > .........
>> > > > >
>> > > > > while( ( dirp = readdir( d )) != NULL )
>> > > > > {
>> > > > > if ( ( stat( dirp->d_name , &stat_buf) != -1 ) && (S_ISREG(
>> > > > > stat_buf.st_mode ) ))
>> > > > > {
>> > > > > iret [ fileCounter ] = pthread_create ( &t [ fileCounter ] ,
>> NULL ,
>> > > > > callPluginHandle , (void *)(dirp->d_name) ) ;
>> > > > > fileCounter ++;
>> > > > > }
>> > > > > }
>> > > > > ...........
>> > > > > }
>> > > > > </code>
>> > > > >
>> > > > > This is a code prototype which I am trying to write. But I
>> get run
>> > > > time
>> > > > > problmes
>> > > > > ----- Bus error
>> > > > > ----- Deallocation exclusively large block
>> > > > > ----- Collecting unknown thread
>> > > > >
>> > > > > I am not doing any free or deallocation .. I am relying on gc
>> for all
>> > > > > memory freeing !
>> > > > > Help required ! :)
>> > > > >
>> > > > > --
>> > > > > *Uddhav Arote*
>> > > > >
>> > > > > Mob Number : +91 9767168079
>> > > > > *Vidyavardhini College Of Engg. and Tech,Mumbai(MAHARASHTRA).*
>> > > >
>> > >
>> > >
>> > >
>> > > --
>> > > *Uddhav Arote*
>> > >
>> > > Mob Number : +91 9767168079
>> > > *Vidyavardhini College Of Engg. and Tech,Mumbai(MAHARASHTRA).*
>> > >
>> > >
>> >
>> > > Life is no brief candle for me. It is a sort of splendid torch which
>> I have
>> > > got hold of for the moment, and I want to make it burn as brightly as
>> > > possible before handing it on to future generations.
>> > > -George Bernard Shaw
>> > >
>> > > * <Email-id:aroteuddhav at gmail.com<http://e.mail.ru/cgi-bin/sentmsg?compose&To=Email-id%3Aaroteuddhav@gmail.com>
>> >*
>> > >
>> > >
>> >
>> >
>> >
>> >
>> > --
>> >
>> > Uddhav Arote
>> >
>> > Mob Number : +91 9767168079
>> > Vidyavardhini College Of Engg. and Tech,Mumbai(MAHARASHTRA).
>> >
>> >
>> > Life is no brief candle for me. It is a sort of splendid torch which I
>> have got hold of for the moment, and I want to make it burn as brightly as
>> possible before handing it on to future generations.
>> > -George Bernard Shaw
>> >
>> >
>> >
>> >
>>
>>
>>
>>
>> --
>> *Uddhav Arote*
>>
>> Mob Number : +91 9767168079
>> *Vidyavardhini College Of Engg. and Tech,Mumbai(MAHARASHTRA).*
>>
>>
>> Life is no brief candle for me. It is a sort of splendid torch which I
>> have got hold of for the moment, and I want to make it burn as brightly as
>> possible before handing it on to future generations.
>> -George Bernard Shaw
>>
>> *<http://e.mail.ru/cgi-bin/sentmsg?compose&To=Email-id%3Aaroteuddhav@gmail.com>
>> *
>>
>>
>>
>>
>> --
>> *Uddhav Arote*
>>
>> Mob Number : +91 9767168079
>> *Vidyavardhini College Of Engg. and Tech,Mumbai(MAHARASHTRA).*
>>
>>
>> Life is no brief candle for me. It is a sort of splendid torch which I
>> have got hold of for the moment, and I want to make it burn as brightly as
>> possible before handing it on to future generations.
>> -George Bernard Shaw
>>
>> *<http://e.mail.ru/cgi-bin/sentmsg?compose&To=Email-id%3Aaroteuddhav@gmail.com>
>> *
>>
>>
>>
>
>
> --
> *Uddhav Arote*
>
> Mob Number : +91 9767168079
> *Vidyavardhini College Of Engg. and Tech,Mumbai(MAHARASHTRA).*
>
>
> Life is no brief candle for me. It is a sort of splendid torch which I
> have got hold of for the moment, and I want to make it burn as brightly as
> possible before handing it on to future generations.
> -George Bernard Shaw
>
> * <Email-id%3Aaroteuddhav at gmail.com>*
>
>
--
*Uddhav Arote*
Mob Number : +91 9767168079
*Vidyavardhini College Of Engg. and Tech,Mumbai(MAHARASHTRA).*
Life is no brief candle for me. It is a sort of splendid torch which I have
got hold of for the moment, and I want to make it burn as brightly as
possible before handing it on to future generations.
-George Bernard Shaw
* <Email-id%3Aaroteuddhav at gmail.com>*
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